calcNMC: Calculate NMC_XY, another type of migratory connectivity...

In MigConnectivity: Estimate Migratory Connectivity for Migratory Animals

Calculate NMC_XY, another type of migratory connectivity strength

Description

Provides simple calculation of NMC_XY (network migratory connectivity strength between seasons X and Y), NMCa_XY (abundance-weighted network migratory connectivity strength), and network migratory connectivity diversity (X node-specific version of NMC_XY) from point estimate of psi (transition probabilities) and originRelAbund (optional). Does not include measures of uncertainty.

Usage

calcNMC(psi, originRelAbund = NULL)

Arguments

psi	Matrix of transition probabilities
originRelAbund	(optional) Vector of relative (proportional) abundance at the origin sites. If entered, should sum to 1.

Value

calcNMC returns a list with elements:

NMC

scalar real value between 0 and 1, indicating the strength of network migratory connectivity

NMCpop

Vector of network migratory connectivity diversity values, also between 0 and 1, the X-node-specific version of NMC_XY

NMCa

If originRelAbund was entered, the results will include this, an abundance weighted measure of the strength of network migratory connectivity (also between 0 and 1). If originRelAbund was not entered, this will be left out

See Also

estNMC, calcMC, estMC

Examples

nScenarios <- length(samplePsis)
NMC1 <- vector("list", nScenarios)
for (i in 1:nScenarios) {
  NMC1[[i]] <- calcNMC(samplePsis[[i]])
}
names(NMC1) <- names(samplePsis)
str(NMC1)

calcNMC(samplePsis[[7]], sampleOriginRelN[[2]])

MigConnectivity documentation built on Aug. 27, 2025, 9:09 a.m.